The disclosure relates to a 5.sup.th generation (5G) or 6.sup.th generation (6G) communication system for supporting a higher data transmission rate. The disclosure relates to the field of communication. A method and device for beam selection are provided. The method for beam selection includes acquiring network related information and/or user equipment (UE) related information for the beam selection, determining at least one first candidate beam corresponding to the UE among beams of a base station based on the acquired information, and determining a serving beam of the UE based on the determined at least one first candidate beam.

Certain aspects of the present disclosure provide techniques that may be executed by a new radio (NR) gNB for sending signaling to a user equipment (UE), which may indicate information that may enable the UE to measure synchronization signal blocks (SSBs) that each have an associated range and an associated direction, for performing an initial access procedure.

Provided is a random access method, including: a broadcast signal sent by a base station on a non-SUL carrier is received, the broadcast signal is parsed to obtain a first RSRP threshold and a second RSRP threshold, the first RSRP threshold being an RSRP limit value at which an MsgA PRACH signal is received and parsed on the non-SUL carrier to reach a target block error rate, and the second RSRP threshold being an RSRP limit value at which an MsgA PUSCH signal is received and parsed on the non-SUL carrier to reach a target block error rate; an RSRP of the broadcast signal on the non-SUL carrier is measured to obtain a measured RSRP; and carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal are determined separately according to a numerical relation between the measured RSRP and the first RSRP threshold and the second RSRP threshold.

The present disclosure provides a measurement method, a terminal device, and a network device. The method includes: relaxing, by a terminal device, a radio frequency measurement criterion and/or restricting, by the terminal device, cell measurement report content under a condition.

A user equipment (UE) may receive a measurement reporting capability request from a base station and further transmit, in response to the request, an indication of the UE’s measurement reporting capability. The UE may further receive, signaling comprising a channel status information (CSI) request trigger from the base station. In response to receiving the CSI request trigger, the UE may transmit a measurement report to the base station, wherein the measurement report may comprise at least one received signal strength indicator (RSSI) measurement.

Embodiments of the present disclosure provide methods and apparatus for performing a measurement associated to a resource. A method performed at a terminal device comprises determining (S101) whether a first condition or a second condition is met, based on a communication quality; and performing (S102) a measurement associated to a resource, when the first condition is met, or stopping (S103) the measurement associated to the resource, when the second condition is met. According to embodiments of the present disclosure, the measurement may be performed or stopped under a first condition or a second condition. The relevant time and power may be saved.

A method and apparatus for a reestablishment of a connection between a terminal device and a network. The method performed at a terminal device comprises receiving, from a first network node in a communication network, information for assisting the terminal device to perform a reestablishment of a connection to the communication network; and transmitting, to the first network node, a message indicating that the terminal device selects a resource to perform the reestablishment. During the reestablishment of the connection, the interference for the wireless communication system may be reduced, and the latency for the terminal device may be reduced.

A system, method and apparatus for mobile communications including sidelink transmissions is provided. A user equipment (UE) maintains a first interface between the first UE and a radio access network (RAN) infrastructure node, a second interface between the first UE and a second UE and a third interface between the first UE and a satellite node or an airborne node. The UE switches between interfaces according to a current connectivity state and based on signal attributes associated with individual interfaces.

A communication method is applied to a base station side, and includes: sending configuration information to a user equipment (UE), the configuration information being configured to indicate at least one of: a random access mode or a data bearing mode under a random access scenario.

The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure provides a method for performing dynamic cross-link interference (CLI) measurement and reporting in a mobile communication system. In accordance with an aspect of the disclosure, the method performed by a terminal comprises: receiving, from a base station, first information for a measurement object associated with a CLI and second information for a report configuration, the first information including at least one of configuration for sounding reference signal (SRS) resources and configuration for resources to measure a received signal strength indicator (RSSI) associated with the CLI; obtaining a reference signal received power (RSRP) of at least one SRS based on the SRS resources and at least one bandwidth part (BWP) identifier (ID) included in the configuration for the SRS resources; and transmitting, to the base station, a measurement report including the RSRP based on the second information.